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河流丰枯变化，主要是大气环流作用。文章分析研究了我国南北河流径流丰枯变化，并通过南北河流典型年径流变化类型与大气环流相联系，探索其南北河流径流变化规律，这对防汛抗旱，减灾防灾工作有着重要的参考价值
Fluvial changes in rivers, mainly the role of atmospheric circulation. This paper analyzes the changes of runoff and abundance in the north and south rivers in China, and relates the atmospheric circulation with the typical annual runoff change types of the north and south rivers to explore the variation of runoff in the north and south rivers, which has important reference value for flood control, drought relief and disaster prevention and mitigation